an abstract japanese retro neon billboard sign and advertisement in akihabara, showcasing anime and otaku culture at night. the

advertisement entertainment captivating distinctive futuristic experience technology commercial billboard akihabara metaverse cyberpunk animation nostalgic cityscape undefined abstract japanese lighting bustling electric creative futurism colorful culture vibrant dynamic streets cosplay fiction graphic fantasy bright colors visual trendy lively lights modern design online retro anime otaku night akiba japan urban manga video games scifi neon sign glow pop art